Abraham Lincoln's birthday was February 12, 1809. Today would be his holiday. George Washington's birthday was February 22, 1732. Next Monday would be his holiday, but the feds consolidated them in 1971.
Allen Guelzo's has a major biograpy of Lincoln, Abraham Lincoln: Redeemer President. Also, from David Herbert Donald, Lincoln.
And from Carl Sandburg, Abraham Lincoln: The Prairie Years and The War Years.